configurations: minerva: Add BuildDate property

Add BuildDate property on minerva.

Tested:
```
root@bmc:~# busctl introspect xyz.openbmc_project.EntityManager /xyz/openbmc_project/inventory/system/board/Minerva_CMM
NAME                                                TYPE      SIGNATURE RESULT/VALUE                             FLAGS
...
xyz.openbmc_project.Inventory.Decorator.Asset       interface -         -                                        -
.BuildDate                                          property  s         "20240509T053800Z"                       emits-change
.Manufacturer                                       property  s         "Quanta"                                 emits-change
.Model                                              property  s         "Minerva CMM EVT2"                       emits-change
.PartNumber                                         property  s         "3IF0MMA0000"                            emits-change
.SerialNumber                                       property  s         "TW93941800010  "                        emits-change
...

```

Change-Id: I573c344c59f376f29f4b083b1aa0b00c1c4ac5da
Signed-off-by: Yi-Shum <EasonChen1@quantatw.com>
diff --git a/configurations/minerva_fanboard.json b/configurations/minerva_fanboard.json
index 00939f7..f331a9e 100644
--- a/configurations/minerva_fanboard.json
+++ b/configurations/minerva_fanboard.json
@@ -390,6 +390,7 @@
         ],
         "Type": "Board",
         "xyz.openbmc_project.Inventory.Decorator.Asset": {
+            "BuildDate": "$BOARD_MANUFACTURE_DATE",
             "Manufacturer": "$BOARD_MANUFACTURER",
             "Model": "$BOARD_PRODUCT_NAME",
             "PartNumber": "$BOARD_PART_NUMBER",
@@ -787,6 +788,7 @@
         ],
         "Type": "Board",
         "xyz.openbmc_project.Inventory.Decorator.Asset": {
+            "BuildDate": "$BOARD_MANUFACTURE_DATE",
             "Manufacturer": "$BOARD_MANUFACTURER",
             "Model": "$BOARD_PRODUCT_NAME",
             "PartNumber": "$BOARD_PART_NUMBER",
@@ -1184,6 +1186,7 @@
         ],
         "Type": "Board",
         "xyz.openbmc_project.Inventory.Decorator.Asset": {
+            "BuildDate": "$BOARD_MANUFACTURE_DATE",
             "Manufacturer": "$BOARD_MANUFACTURER",
             "Model": "$BOARD_PRODUCT_NAME",
             "PartNumber": "$BOARD_PART_NUMBER",